An Account of the Transit of Venus over the Sun, June 3d, 1769, and of the Transit of Mercury Nov. 9th, Both as Observed in the State-House Square, Philadelphia. By the Committee Appointed for Those Observations. Drawn up, and Communicated, in Behalf of the Committee, by Rev. John Ewing, A. M
Published in Transactions of the American Philosophical Society, in 1769, in volume 1, pages 42-88
Date published:1769